NBME 20

nbme20/Block 4/Question#39

A 30-year-old woman develops serum sickness ...

C3a

Login to comment/vote.

 +2  upvote downvote
submitted by johnthurtjr(20),

FA 2019 pg 400:

Mast cells... can be activated by tissue trauma, C3a and C5a, surface IgE cross-linking by antigen (IgE receptor aggregation) --> degranulation --> release of histamine, heparin, tryptase, and eosinophil chemotactic factors.